Company lists · Data refreshed September 2026

Top 25 Offshore engineering companies based in Canada

RevenueBase identified 260 offshore engineering companies headquartered in Canada as of September 2026 and tracks 5,131 professional contacts across them, including 1,923 with verified work emails. Calgary is the largest hub.

This list covers offshore engineering companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review
260Companies
5,131Contacts tracked
1,923Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest offshore engineering companies based in Canada

Ranked by team size
Top 25 of 260 offshore engineering companies based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offshore engineering companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceEdmonton, AB, CanadaHQ checked Sep 17, 2026501-1,000278 contacts →

Partial evidence

“Thermo Design (TDE) is an innovative energy solutions company and a recognized leader in the design and engineering, fabrication, manufacturing, construction management…”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceStrathmore, AB, CanadaHQ checked Sep 17, 2026201-500205 contacts →

Indirect evidence

“Magnum Services is shaping North America’s Energy and Infrastructure through innovation and in-house capability.”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceCalgary, AB, CanadaHQ checked Sep 17, 2026201-500203 contacts →

Partial evidence

“Gas Liquids Engineering (GLE) is a Calgary, Alberta based engineering services provider.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceSaint John, NB, CanadaHQ checked Sep 17, 2026501-1,000194 contacts →

Partial evidence

“Atlantic Towing is a leading provider of Offshore Supply, Port and Coastal marine services, operating in the North Atlantic, South Atlantic, Arctic and Pacific Coastal regions, as…”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceCalgary, AB, CanadaHQ checked Sep 17, 20261,001-5,000184 contacts →

Partial evidence

“Steelhaus boldly drives the market with innovative energy solutions; fusing practical, field proven experience, adaptable engineering, integrated manufacturing, and uncompromising…”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceCalgary, AB, CanadaHQ checked Sep 17, 2026201-500173 contacts →

Partial evidence

“Tetranex Solutions is a multi-discipline engineering company specializing in industrial automation, electrical systems, process engineering, digital infrastructure and…”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceCalgary, AB, CanadaHQ checked Sep 17, 2026201-500157 contacts →

Partial evidence

“EPFC is a diverse team of professionals with extensive experience in engineering, procurement, fabrication, construction, commission and start-up, and operations.”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceMontréal, CanadaHQ checked Sep 17, 2026501-1,000155 contacts →

Indirect evidence

“Leader since 1972, The S.M.”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceMontague, PE, CanadaHQ checked Sep 17, 202651-200124 contacts →

Indirect evidence

“AKA Energy Systems (Aspin Kemp & Associates Inc.), established in 1996, is an energy systems provider delivering innovative solutions worldwide.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceSalaberry-de-valleyfield, QC, CanadaHQ checked Sep 17, 202651-200122 contacts →

Partial evidence

“Shellex is an engineering consulting firm founded in Quebec over twenty years ago.”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceMississauga, ON, CanadaHQ checked Sep 17, 202651-200119 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceVancouver, BC, CanadaHQ checked Sep 17, 202651-20084 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceCalgary, AB, CanadaHQ checked Sep 17, 202651-20080 contacts →

Indirect evidence

“Providing Excellence and Innovative Solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceCorunna, ON, CanadaHQ checked Sep 17, 2026501-1,00074 contacts →

Indirect evidence

“Established in 1979 LamSar Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceQuébec, QC, CanadaHQ checked Sep 17, 202651-20065 contacts →

Partial evidence

“Techsol Marine is an established electrical engineering company that designs, fabricates and supports a range of high-tech sustainable solutions for the marine industry.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceSt John’s, NL, CanadaHQ checked Sep 17, 202651-20065 contacts →

Indirect evidence

“DF Barnes is a Newfoundland and Labrador company engaged in fabrication, maintenance and industrial construction for the mining, oil and gas, renewable and marine sectors.”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceSt John’s, NL, CanadaHQ checked Sep 17, 2026201-50064 contacts →

Partial evidence

“Reliance Offshore is the offshore & marine personnel subsidiary of the I.”

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceDelta, BC, CanadaHQ checked Sep 17, 202651-20059 contacts →

Partial evidence

“Albion Marine Solutions Ltd, Canada is dedicated to providing shipping industry with reliable, professional and cost effective consultancy, engineering, site supervision, retrofit…”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceDartmouth, NS, CanadaHQ checked Sep 17, 202651-20055 contacts →

Partial evidence

“Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceNisku, AB, CanadaHQ checked Sep 17, 202651-20052 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceCalgary, AB, CanadaHQ checked Sep 17, 202651-20048 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceToronto, ON, CanadaHQ checked Sep 17, 202651-20043 contacts →

Indirect evidence

“PETRO-TECHNA INTERNATIONAL LTD.”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceLloydminster, AB, CanadaHQ checked Sep 17, 202651-20043 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
24Indirect evidenceGrande Prairie, AB, CanadaHQ checked Sep 17, 2026201-50038 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceBurnaby, BC, CanadaHQ checked Sep 17, 202611-5037 contacts →

Partial evidence

“Founded in 1985, the Temec Engineering Group develops, designs and delivers engineered solutions to help customers in the oil and gas, pulp and paper, manufacturing, power…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 260 offshore engineering companies based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,923 reachable decision-makers.

Free signup · no credit card

View the full list →

Offshore engineering companies based in Canada at a glance

As of Sep 17, 2026
37.5%Verified-email coverage
19.7Average contacts per company
11-50Median size (employees)
34.6%Largest-city concentration · Calgary
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
97
11-50
77
51-200
59
201-500
15
501-1,000
9
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 260 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among offshore engineering companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Canada whose own description of what they do matches “offshore engineering companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names offshore engineering companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among offshore engineering companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 1,923 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Offshore engineering companies by metro

  • Offshore engineering companies in Calgary90

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names offshore engineering companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many offshore engineering companies are there based in Canada?

RevenueBase identified 260 offshore engineering companies headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Thermo Design Engineering LTD, headquartered in Edmonton, tops this list with the largest team on record.

Which city has the most offshore engineering companies?

Calgary leads with 90 headquartered companies, followed by Edmonton (16) and Dartmouth (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,923 verified decision-maker contacts tracked across these 260 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 260 offshore engineering companies based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.